A is recommended to reduce the dust liberated due to rollback under the dumping mechanism.

听力原文： Next time you bring your kids in for a checkup, don't be surprised if the doctor asks about their tastes in entertainment. The American Academy of Medicine suggested last week that doctors work with parents to evaluate how much TV kids watch and what they see, what video and computer games they play, which websites they visit on the Internet, whether they view R-rated videos without the company of their parents, what music they like and what books they read. Doctors are worried that kids who spend too much time in front of the TV set don't get enough exercise and can become overweight. The academy is also concerned that the message kids get from entertainment media can make them more violent and sexually active.

The academy recommends that children under age two not watch any TV. "Children need activities to stimulate the brain during the first two years of life," says Doctor Mitten Baron, who chairs the academy's committee on public education. "They need feedback and socialization." Elder children, she says, should watch TV in a common area. Their bedrooms should be "electronic media-free zones", where they can have a quiet place to read, study, play or just relax.

(23)

A．How much exercise they get every day.

B．What they are most worried about.

C．How long their parents accompany them daily.

D．What entertainment they are interested in.

AcompanyhasrecentlyupgradedallbackuphardwareandmediafromDLTIVtoLTO3tapesand tapedrives.Severalweeksaftertheupgrade，thedevelopmentteamdiscoversacorruptioninoneofthe applicationserversandmustrestorefromoneoftheDLTIVtapes.Whichofthefollowingstepsarenecessaryfortheserveradministratortousethesetapes？（）

A.ReformattheDLTIVtapeinLTO3format.Loadthetape.

B.InstalltheDLTIVdriverontheLTO3drive.Loadthetape.

C.LoadtheDLTIVtapeintotheLTO3drive.

D.ReplacetheLTO3drivewithaDLTIVtapedrive.Loadthetape.

Your network consists of a single Active Directory domain. All network servers run Windows Server 2003Service Pack 2 (SP2).Your organization has a storage area network (SAN). All shared folders on file servers are stored on the SAN.The Change permission for all shared folders is assigned to Domain Users. Different NTFS permissions are also applied to the shared folders.You perform a daily full backup of all the files stored in the shared folders.A file server fails and requires several hours to repair.You need to provide users access to the shared folders that were on the failed file server as quickly as possible.Existing permissions must be retained for all files.What should you do? （）

A. Attach an existing file server to the SAN storage locations. Configure the shared folders on the server.

B. Attach an existing file server to the SAN storage locations. Configure NTFS permissions for the folders.

C. On an existing file server, restore the data from the tape backup. Configure NTFS permissions for the folders.

D. On an existing file server, restore the data from the tape backup. Configure the shared folders on the server.

AnadministratorperformsafullbackupeverySaturdayeveninganddailyincrementalbackupstherestoftheweek.ThesystemfailedonThursdayandmustberestored.Whichbackuptapeswillberequiredtorestorethesystemtoitsmostrecentrecoverablestate（）

A.Saturday’sfullbackuptape

B.Wednesday’sbackuptape

C.Saturday’sfullbackupandWednesday’sincrementalbackuptapes

D.Saturday’sfullbackupandSunday’sthroughWednesday’sincrementalbackuptapes

听力原文： What kind of car will we be driving by the year 20107 It may be rather different from the type we know today. With the next decade, bringing greater change than the past 50 years, the people who will be designing the models of tomorrow believe that environmental problems may well accelerate the pace of the car' s development. The vision is that of a machine with 3 wheels instead of 4, electrically-powered, environmentally clean and able to drive itself along intelligent roads, equipped with built-in power supplies. Future cars will pick up the fuel during long journeys from a power source built into the road, or stored in small quantifies for travelling in the city. Instead of today' s seating arrangement, two in front, two or three behind, all facing forward, the 2010 car will have an interior with adults and children in a family circle. This view of future carls based on a much more sophisticated road system. Cars will be automatically controlled by a computer. All the drivers will have to do is to say where to go and the computer will do the rest. It will become impossible for cars to crash into one another. The technology already exists for the car to become a true automobile.

(33)

A．They will be much bigger.

B．They will have more seats.

C．They will have three wheels.

D．They will need intelligent drivers.

Screen Test

1. Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough, the disease can often be. treated successfully. According to a survey published last year, 21 countries have screening programmes. Nine of them, including Australia, Canada, the US and Spain, screen women under 50.

2. But the medical benefits of screening these younger women are controversial, partly because the radiation brings a small risk of inducing cancer. Also, younger women must be given higher doses of X-rays because their breast tissue is denser.

3. Researchers at the Polytechnic University of Valencia analysed the effect of screening more than 160,000 women at 11 local clinics. After estimating the women's cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause.

4. The mathematical model recommended by Britain's National Radiological Protection Board (NRPB) predicted that the screening programme would cause 36 cancers per 100,000 women, 18 of them fatal. The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.

5. The researchers argue that the level of radiation-induced cancers is "not very significant" compared to the far larger number of cancers that are discovered and treated. The Valencia programme, they say, detects between 300 and 450 cases of breast cancer in every 100,000 women screened.

6. But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to less radiation. The results of their study, they suggest, could help "optimise the technique" for breast cancer screening.

7. "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB. But he warns that the study should be interpreted with caution. "On the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life. That's why radiation exposure should be minimized in any screening programme."

A. Risk of Screening to Younger Women

B. Investigating the Effect of Screening

C. Effects Predicted by Two Different Models

D. Treatment of Cancers

E. Minimizing of Radiation Exposure

F. Factors That Trigger Cancers

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